1. Change necromancer to undead as someone said ( a race not a job)
2. Instead of reducing mana cost (i know is high now) - increase HP by 2X
Reason :
a) a Myrran race need a 2 picks got to be more powerful,
b) this offset the high mana requirement as well
c) The change fit to undead theme hard to kill
d) Very unique after change - expensive stronger race